how do I know which programs I can remove fromxo laptop in order to be able to load Dragon 11 software? Thank you,

I have a IBM T-30 laptop that I'd like to load Dragon software onto. But I keep recieving the message that virtual memory too low. Which programs can I remove safely to make room? I understand that I can increase page file will that help? Someone told me to do so is too dangerous,I don't know? I want to sincerely thank you and wish you a very happy hoilday season.